JPH1029532A - Attaching/detaching mechanism for end seal of air-cushion boat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and reliably attach or detach the end seal of an air-cushion boat such as the bow seal thereof to or from the hull with an attaching/ detaching mechanism therefor, and permit the exchange of seals on the sea. SOLUTION: An attaching/detaching mechanism for the bow seal of an air- cushion boat as the end seal thereof comprises a plurality of rollers 6a provided on a bow seal 2a for guiding the fitted part of the bow seal 2a to a hull la along the fitted part of the hull 1a for the bow seal 2a in attaching or detaching the bow seal 2a to or from the bow of the hull 1a of an air-cushion boat, a guide rail 5a provided on the hull 1a for guiding the rollers 6a, and a rope 8a, sheaves 9a and 10a and a winch 11a as a traction means for hauling the bowl seal 2a inside the hull 1a such that the rollers 6a be guided by the guide rail 5a to roll thereon.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an end-separating mechanism for an air-cushion boat for removing an end seal from an end of a hull of an air-cushion boat.

[0002]

2. Description of the Related Art FIGS. 14 to 17 show a guide rail type bow seal removing mechanism as an end seal removing mechanism of a conventional air cushion boat, and FIG.
19 and 19 show a hook-type bow seal attaching / detaching mechanism as an end seal attaching / detaching mechanism of a conventional air cushion boat. First, in FIGS. 14 to 17 showing an example of a guide rail type bow seal attaching / detaching mechanism, a hull 0
A tube-shaped guide rail 09a for fixing the bow seal device 05 is attached to 8a. Upper part 06a of bow seal device 05 formed of cloth reinforced rubber
Has a columnar portion formed by using a coil spring 014a as a core material and winding the coil spring 014a with a sealing material. By having such a structure, the bow seal device 05a is provided with the columnar portion 0 at the top thereof.
12a is the inside 01 of the guide rail attached to the hull
No. 4,702,332, it is possible to attach it to the hull or remove it from the hull by a simple operation such as inserting it into the hull 0a or pulling it out from the inside 010a of the guide rail. book).

[0003] Next, referring to Figs. 18 and 19 showing an example of a hook type bow seal attaching / detaching mechanism, a bow seal 01b is shown.
Are fixed to the frame 02b by bolts 010b. A large number of stud bolts 04b for fixing the frame 02b to the hull 06b are provided on the upper surface of the frame 02b.
Is attached, and the eye plate 05b can be lifted and suspended by a rope.
Is protruding. In attaching the bow seal 01b to the hull 06b, first, the bow seal 01b is hung by a crane, and the hook 03b protruding at the tip of the seal frame 02b is mounted on the hull side hardware 09b.
To be engaged. At this time, the pull-in rope 07b is connected to the eye plate 05b of the frame 02b. After that, pull-in rope 07 is set by inboard winch 08b.
b, and the bow seal 01b is drawn to the hull 06b while rotating around the hull-side hardware 09b. Finally, when the seal frame 02b comes into close contact with the hull 06b and the stud bolts 04b protrude inboard, they are fastened with nuts.

[0004]

As described above, in the conventional guide rail type bow seal attaching / detaching mechanism as an end seal attaching / detaching mechanism of an air cushion boat, as the size of the air cushion boat increases, the bow seal device also increases. As the size and weight increase, the length of the guide rail increases, and problems such as increased frictional resistance with the guide rail when the bow seal moves along the guide rail occur. As a result, it becomes difficult to insert and withdraw the bow seal from the guide rail. Further, in a hook type bow seal detaching mechanism as a bow seal detaching mechanism of a conventional air cushion boat,
As the size of the air-cushion boat increases, the bow seal device also increases in size and weight, and the following problems occur, making seal replacement impossible. That is, since the weight of the bow seal device increases and the length of the seal frame increases, the deflection of the seal frame when the bow seal is lifted increases, and the stud bolt tightening operation becomes impossible. Therefore, when trying to increase the rigidity of the seal frame, the weight of the seal frame increases, and the weight of the hull increases accordingly.
The speed of the air cushion boat becomes difficult to increase.

[0005] Therefore, the present invention provides a method for removing and attaching an end seal such as a bow seal of a conventional air cushion boat, even when the size of the air cushion boat is increased and the sealing device is enlarged and the weight is increased accordingly. Therefore, the frictional resistance when pulling out and pulling out the end seal is small, the work of attaching and detaching the end seal to the hull is easy, the seal can be replaced at sea, and the guide rail is deformed when the end seal is lifted and suspended That is, the deflection can be prevented, the bolt connection between the guide rail on the end seal side and the hull can be reliably performed, and the weight of the air-cushion boat is not increased so much that the speed of the air-cushion boat is reduced. It is an object of the present invention to provide an end seal attaching / detaching mechanism for an air cushion boat that does not lower the airtightness.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an end seal attaching / detaching mechanism for an air cushion boat according to the present invention is provided. A plurality of rollers on the end seal side for guiding the upper mounting portion to the hull along the end seal mounting portion on the hull side, and the rollers disposed on the hull side to guide the respective rollers. A guide rail; and a pulling means for pulling the end seal with respect to the hull so that the rollers travel while being guided by the guide rail.

Further, in the end seal attaching / detaching mechanism of the air cushion boat according to the present invention, each of the rollers is disposed along an upper end of the end seal. A seal cap is provided to cover the exposed portion on the hull side between the end seal and the end cap.

Further, in the end seal attaching / detaching mechanism of the air cushion boat according to the present invention, the towing means for towing the end seal with respect to the hull is a winch mounted on the hull.

Further, the end seal attaching / detaching mechanism of the air cushion boat according to the present invention is mounted on the end seal along the upper end of the end seal detachably attached to the end of the air cushion boat. A roller guide rail provided with an attachment / detachment for attaching and detaching the end seal to and from the end, and a roller rotatably supporting and movable by being guided and movable by the roller guide guide rail; The roller guide guide rail moves along the roller guide guide rail via a roller, and adds rigidity to the roller guide guide rail until the roller guide guide rail is attached to the end of the hull by the detachment tool. After the roller guide rail is attached to the bow of the hull by the detachment tool, the roller guide rail is taken out from the roller guide rail itself. A supporting frame with rollers having rigidity, and a winch arranged on the hull for operating a guide rail for roller guide mounted on the end seal together with the end seal via a rope. .

Further, in the end seal attaching / detaching mechanism for an air cushion boat according to the present invention, a rope draw-in hole is formed in an upper portion of the hull for guiding the rope when the winch draws the rope. .

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A description will now be given, with reference to FIGS. 1 to 8, of a bow seal attaching / detaching mechanism as an end seal of an air cushion boat according to a first embodiment of the present invention.
As shown in FIG. 1 (1), FIG. 1 (2) and FIG. 1 (3), the air-cushion boat has a bow seal 2a as an end seal provided at the bow of the hull 1a and a stern. The stern seal 4a as an end seal provided is provided so that the bow seal 2a and the stern seal 4a do not leak the cushion air accumulated in the inside 3a of the hull 1a of the air cushion boat to the outside. Each is mounted on the bow and stern. In particular, FIG.
As shown in (3), the bow seal 2a as an example of the end seal has a substantially U-shaped horizontal cross-sectional shape that is curved and continuous at the front end, and has a length in the front-rear direction as it goes downward. Has a shape that is gradually reduced, and as shown in FIG. 1 (2), a plurality of strips are arranged in the width direction of the hull when viewed from the front of the hull, and five pieces are arranged in the case of FIG. 1 (2). Have been. The material of the seal material of the bow seal 2a and the stern seal 4a is, for example, a cloth reinforced rubber or an elastomer such as a cloth reinforced rubber or a cloth reinforced thermoplastic elastomer.

FIG. 2 shows a bow seal 2 according to the present invention.
FIG. 3A shows a state in which the a is mounted on the hull 1a of the air cushion boat, and FIGS. 3A and 3B show details of the guide portion of the bow seal 2a in FIG. In FIG. 2, FIG. 3 (1) and FIG. 3 (2), on the upper part of the seal 2a, a large number of roller hardwares 14a are provided.
a between the roller fitting 14a and the bow seal 2a
Are fixed by bolts 18a with the sealing material of the above-described type sandwiched therebetween. In particular, as shown in FIG. 3 (2), the upper end edge of the bow seal 2a is formed in a cylindrical shape using the rope 8a as a core material, and thus the upper end edge of the bow seal 2a is connected to the rope 8a. The relative displacement between the roller hardware 14a and the bow seal 2a is prevented by being formed in a cylindrical shape as the material. On the other hand, on the hull 1a side, a guide rail for guiding the roller 6a so that the roller 6a above the bow seal 2a slides smoothly so that the bow seal 2a can be retracted to a predetermined position. 5a is provided.

Inside the hull 1a of the air cushion boat, the roller hardware 14a is positioned above the path of the roller hardware 14a so that the roller hardware 14a does not vibrate in the guide rail 5a after the bow seal 2a has been retracted.
A holding bolt 19a for holding the head is disposed at an arbitrary position at an appropriate interval, and the bow seal 2a is not displaced from the rope 8a on the rope 8a at the upper end edge of the bow seal 2a. Stopper 17
a is formed.

As shown in FIG. 2, sheaves 9a, 10a and a winch 11 used for retracting the bow seal 2a are provided on and in the hull 1a of the air cushion boat.
a and an eye plate 13a for fixing the rope 8a at the upper edge of the bow seal 2a when the retraction is completed. The winch 11a is mounted on the hull 1a of the air cushion boat so that the hull 1a can be replaced by sequentially moving the bow seals 2a arranged in the width direction of the hull 1a.
Is mounted on the rail 12a so as to be movable along the rail 12a extending in the width direction.

As shown in FIGS. 4 (1) and 4 (2), an auxiliary guide 7a for use in retracting the bow seal 2a is fixed to a front portion of the hull 1a of the air cushion boat by bolts 21a. ing. This auxiliary guide 7a
Is removed from the hull 1a of the air cushion boat after the retraction of the bow seal 2a is completed. As shown in FIG. 5A, the auxiliary guide 7a is provided on the hull 1 of the air cushion boat.
5A, the opening is widened as indicated by C in FIG. 5A, and air leaks from the guide rail entrance / exit. Since the lateral gap D is inside the bow seal 2a, air leakage hardly occurs. In order to prevent the above-described air leakage, as shown in FIG.
5 (1) and 5 (2), when the auxiliary guide 7a is removed from the hull 1a of the air cushion boat after the retraction of the bow seal 2a is completed, the seal cap is formed. Auxiliary guide 7 by 20a
a is removed from the hull 1a of the air cushion boat, and the opening after the opening is closed, the seal cap that has closed the opening is pressed by the frame 22a, and further fixed to the hull 1a side with the bolts 23a.

FIGS. 7 (1) to 7 (3), 8 (1)
8 (2) shows how to attach the bow seal 2a to the hull 1a of the air cushion boat.
When removing the bow seal 2a from the hull 1a of the air cushion boat, the procedure is the reverse of the procedure for attaching the bow seal 2a to the hull 1a. First, as shown in FIG. 7 (2), the upper end edge of the front part of the bow seal 2a is fixed to the suspension frame 26a, and then the bow seal 2a is lifted by a crane. Then, as shown in FIG. 7A, the bow seal 2a is moved to the position of the auxiliary guide 7a at the front of the hull 1a of the air cushion boat by the operation of the crane. Next, the rope 8a is wound up by the winch 11a in the hull, and the bow seal 2 is wound.
The roller 16a at the upper end of the roller a is drawn into the auxiliary guide 7a. At this time, the worker 27a on the ship
a so as to smoothly enter the auxiliary guide 7a.

When the retraction of the bow seal 2a is completed,
As shown in FIGS. 5A and 5B, the auxiliary guide 7a is removed, and the opening at the front end of the guide rail 5a is sealed by the seal cap 20a. Next, the procedure for connecting the rope 8a at the upper edge of the bow seal 2a and the eye plate 13a in the hull 1a of the air cushion boat is as follows.
It is as follows. As shown in FIGS. 8 (1) and 8 (2), first, one thimble 24a of the two thimbles attached to the rope 8a is connected to the rope of the winch 11a and wound up, and the other thimble 25a is connected to the eyelet. When it reaches the position of the plate 13a, the thimble 25a
Is connected to the eye plate 13a, and one thimble 24a
Is removed from the rope of the winch 11a.

Next, referring to FIGS. 9 to 13, a description will be given of a bow seal attaching / detaching mechanism as an end seal of an air cushion boat according to a second embodiment of the present invention. First, FIG. 9 (1) and FIG. 9 (2) show an overall outline of a bow seal of an air cushion boat according to a second embodiment of the present invention. In FIG. 9 (1) and FIG. 9 (2), in a state where the support frame 21b with the roller is inserted into the guide rail 6b attached to the upper end edge of the bow seal 2b, the bow seal 2b is an air cushion boat. Hull 1b
It is fixed to. The roller support frame 21b is pulled out from the bow seal 2b after the bow seal 2b is fixed to the hull 1b of the air cushion boat. Bow seal 2
A large number of stud bolts 7b project upward from the guide rail 6b at the upper edge of the b, and each of the stud bolts 7b is passed through a bolt hole formed in the hull bottom 3b from below by a nut from above. By fixing
The bow seal 2b is fixed to the hull 1b of the air cushion boat. Winches 8b and 9b for lifting the bow seal 2b are provided in the hull 1b.

FIGS. 10A and 10B show how to insert the support frame 21b with rollers into the guide rail 6b. The support frame with rollers 21b is provided with a large number of rollers 5b so that the support frames with rollers 21b can slide smoothly in the guide rails 6b, and the support frames with rollers 21b are guided using the rollers 5b. By being inserted into the rail 6b, the guide rail 6 when the bow seal 2b is lifted and suspended.
The deformation or bending of b is prevented. When the supporting frame with roller 21b is inserted into the guide rail 6b, the fixing pin 13b is inserted into the pin inserting hole 12b formed in the rail bracket of the guide rail 6b and the pin inserting hole 11b formed in the supporting frame 21b with roller. The support frame 21b with the roller and the guide rail 6b are inserted so as not to be displaced from each other when the bow seal 2b is lifted and suspended.

FIG. 11 shows a cross section of a joint portion of the guide rail 6b, the support frame 21b with rollers and the hull bottom 3b. In FIG. 11, the bow seal 2b
Are fixed by bolts 17b to guide rails 6b provided for each pair of bow seals 2b on the left and right sides, and the guide rails 6b of each pair are provided with reference to FIGS. 9 (1) and 9 (2). As described above, the stud bolt 7b fixes the hull bottom 3b from the lower surface side.
On the other hand, the supporting frame with rollers 21b is equipped with an eye plate 10b for lifting and hanging and a rope 16b connected to the eye plate 10b.

In FIG. 12, the mounting of the bow seal 2b is completed, and the support frame 21b with rollers is mounted on the bow seal 2b.
Of the upper opening after pulling out the upper opening. Lid sheet 1 formed on bow seal 2b
4b and 15b are sequentially folded, and finally the frame 18 is bent.
b, the cover sheet 15b is pressed on the front surface of the hull 1b, and the frame 18b with the cover sheet 15b pressed on the front surface of the hull 1b is fixed on the hull by bolts.

FIG. 13 shows a procedure for mounting the bow seal 2b. As shown in FIG. 13 (1),
The guide rail 6b at the upper edge of the bow seal is not deformed or bent due to its own weight during lifting.
First, the support frame with roller 21b is inserted, and FIG.
As shown in (2), it is fixed by the fixing pin 13b. In this state, the bow seal 2b is suspended by the crane via the suspension cable 19b and is moved toward the hull 1b. At the time of movement toward the hull 1b, the support frame with rollers 21b is moved by the inboard winches 8b, 9b shown in FIG. Connected to the rope to be wound.

Next, as shown in FIG. 13 (2), while operating the crane and the inboard winches 8b, 9b,
Pull up the bow seal 2b until it touches the hull bottom.
As shown in FIG. 13 (3), when the bow seal 2b contacts the hull bottom and the stud bolts 7b penetrate the hull bottom as shown in FIGS. 9 (1) and 9 (2), each stud bolt 7b is removed. Secure with nuts. When the guide frame 6b is fixed to the hull 1b in this way, the crane is operated as shown in FIG. 13 (4) and further as shown in FIG. 13 (5).
The support frame with roller 21b is pulled out from the opening at the upper end of the bow seal 2b. Then, as shown in FIG. 13 (6), after the support frame with roller 21b is pulled out,
As shown in FIG. 12, the opening at the front surface of the upper edge of the bow seal 2b is sealed and closed.

[0024]

As described above, according to the end seal attaching / detaching mechanism of the air cushion boat of the present invention, the following effects can be obtained. (1) The guide for guiding the mounting portion on the hull side on the end seal at the time of attaching and detaching the end seal to and from the end of the air cushion boat along the end seal mounting portion on the hull side. A plurality of rollers on the end seal side, a guide rail arranged on the hull side and guiding each of the rollers,
A traction means for towing the end seal with respect to the hull so that each roller travels guided by the guide rail is provided, so that the size of the air cushion boat increases, and the sealing device accordingly increases. Even if the weight increases, the frictional resistance when pulling in and pulling out the end seals is small compared to the conventional air cushion boat end seal detachment mechanism, and the work of attaching and detaching the end seals to the hull is easy,
It is also possible to replace the seal at sea (claim 1). (2) Each of the rollers is disposed along an upper end of the end seal, and an upper end of the end seal covers an exposed portion on the hull side between the hull and the end seal. Even if the size of the air cushion boat becomes larger and the sealing device becomes larger and the weight increases with the extension of the seal cap for the air cushion boat, the end cap detachment mechanism of the conventional air cushion boat becomes larger than that of the conventional air cushion boat. The frictional resistance at the time of pulling in and pulling out the part seal is small, and the work of attaching and detaching the end seal to and from the hull is easy. In particular, the exposed part on the hull side between the hull and the end seal is sealed with a seal cap, Can be prevented from leaking, and the seal can be easily replaced on the sea (claim 2). (3) Since the towing means for towing the end seal with respect to the hull is a winch mounted on the hull,
Even when the size of the air cushion boat is increased and the sealing device is enlarged and the weight is increased, the frictional resistance when pulling in and pulling out the end seal is smaller than that of the conventional air cushion boat. The work of attaching and detaching the part seal to and from the hull is easy. In particular, since the traction means for towing the end seal with respect to the hull is a winch mounted on the hull, the work can be performed reliably and safely. In addition, the seal can be replaced on the sea (claim 3). (4) To attach and detach the end seal to and from the end of the air cushion boat, which is attached to the end seal along the upper end of the end seal which is detachable to the end of the air cushion boat. A roller guide rail having a detachable tool, and a roller that can be guided and moved by the roller guide guide are rotatably supported and move along the roller guide guide rail via the roller. Until the roller guide rail is attached to the end of the hull by the detachment tool, rigidity is added to the roller guide rail, and the roller guide rail is attached to the end of the hull. A roller-support frame having sufficient rigidity which is taken out of the roller guide guide rail after being mounted by the detachable tool, and mounted on the end seal. And a winch arranged on the hull for operating the guide rail for roller guide together with the end seal via a rope, so that the air cushion boat becomes larger and the sealing device is accordingly Even if the weight increases, the guide rail can be prevented from being deformed or bent when the end seal is lifted and suspended, as compared with the end seal detachment mechanism of the conventional air cushion boat. Bolt connection work between the guide rail and the hull can be performed reliably, and without further increasing the weight of the air cushion boat,
Therefore, the speed of the air cushion boat does not decrease (claim 4). (5) Since a rope draw-in hole is formed at an upper portion of the hull for guiding the rope when the rope is pulled in by the winch, the size of the air-cushion boat increases, and the sealing device accordingly increases. Even if the weight increases, the work to remove and pull in the end seal is easier and the swing of the draw rope can be suppressed as much as possible, and Can be replaced. In addition, the guide rail can be prevented from being deformed, that is, bent when the end seal is lifted and suspended, and the bolt connection work between the guide rail on the end seal side and the hull can be reliably performed. By not increasing the weight of the air cushion boat, the speed of the air cushion boat is not reduced (claim 5).

[Brief description of the drawings]

FIG. 1A is a longitudinal side view of an air cushion boat according to a first embodiment of the present invention, taken along line AA in FIG. 1B, and FIG. Front view of a boat,
(3) The figure is a perspective view of one of the bow seals taken out.

FIG. 2 is an enlarged vertical sectional view of a main part of FIG. 1 (1).

FIG. 3A is an enlarged view of a portion E in FIG. 2 and FIG.
(2) a main part enlarged side view seen along the line BB of (2);
The figure is a cross-sectional view of the part shown in FIG.

4 (1) is an enlarged view of a portion F in FIG. 2 and is a longitudinal sectional view of a portion shown in FIG. 4 (2), and FIG. 4 (2) is a front view of a portion shown in FIG. 4 (1). FIG.

5 (1) is an enlarged longitudinal sectional view of an essential part showing a state after the auxiliary guide is removed from the state of FIG. 4 (1), and FIG. 5 (2) is a part shown in FIG. 5 (1). FIG.

FIG. 6 is a perspective view of one of the bow seals shown in FIG. 2 taken out.

FIG. 7 (1) is a side elevational view showing a state where a bow seal according to the first embodiment of the present invention is to be mounted, and FIG. 7 (2) is a bow operated by a crane to mount the bow seal. FIG. 3 is a perspective view showing a state where the seal is suspended, and FIG. 3C is a side view showing a state where the bow seal is attached to the hull.

8 (1) and FIG. 2 (2) show the arrangement of the winch in the boat used in the installation or removal of the bow seal as shown in FIG. It is a side view for explaining the point of.

9 (1) is a longitudinal sectional side view of an essential part of an air cushion boat according to a second embodiment of the present invention, and FIG. 9 (2) is FIG.
It is a principal part transverse front view of the part shown to (1).

10 (1) is a perspective explanatory view showing a state in which a support frame with a roller is about to be inserted into a guide rail at an upper end edge of the bow seal when the bow seal shown in FIG. 9 is attached; FIG. The figure is a perspective explanatory view showing a state after the support frame with rollers is inserted into the bow seal of FIG. 9A.

FIG. 11 is an enlarged cross-sectional view of an essential part taken along line CC of FIG. 10 (2).

12 is a perspective explanatory view showing a state in which an opening is sealed with a lid sheet after the bow seal of FIG. 10 is attached to the hull and the support frame with rollers is pulled out.

FIGS. 13 (1) to (6) are main part side explanatory views for sequentially explaining a procedure of an operation for attaching a bow seal according to a second embodiment to a hull.

FIG. 14 is a side view showing an example of a conventional air cushion boat.

15 is a development view of a sealing device used in the air cushion boat of FIG.

16 is a cross-sectional view of a main part showing a state where the sealing device of FIG. 15 is pulled into and mounted on a guide rail.

FIG. 17 is a side view of the portion shown in FIG. 16;

FIG. 18 is a perspective view showing another example of a conventional sealing device for an air cushion boat.

FIG. 19 is an explanatory side view of a main part for describing a procedure of an operation when the sealing device shown in FIG. 18 is mounted on a hull;

[Explanation of symbols]

 05a Bow seal device 06a Upper part of bow seal device 08a Hull 09a Guide rail 010a Inside guide rail 012a Cylindrical portion 014a Coiled spring 01b Bow seal 02b Seal frame 03b Hook 04b Stud bolt 05b Eye plate 06b Ship pulling rope 07b 09b Hull side hardware 010b Bolt 1a Hull of air cushion boat 2a Bow seal as end seal 3a Hull interior 4a Stern seal 5a Guide rail 6a Roller 7a Auxiliary guide 8a Rope 9a, 10a Sheave 11a Winch 12a Rail metal eye 14a 15a Holding plate 16a Roller 17a Stopper 18a Bolt 19a Holding bolt 20a Seal cap 21a Bo Lt 22a frame 23a bolt 24a, 25a thimble 26a suspension frame 27a worker 1b hull of air cushion boat 2b bow seal as end seal 3b hull bottom 5b roller 6b guide rail 7b stud bolt 8b, 9b inboard winch 10b eye plate 11b 12b Pin insertion hole 13b Pin 14b, 15b Lid sheet 16b Rope 17b Bolt 18b Frame 19b Hanging rope 20b Rope lead-in hole 21b Support frame with roller

Claims (5)

[Claims] 1. An air cushion boat according to claim 1, further comprising: a guide portion for guiding a mounting portion of the end seal to the hull side when the end seal is attached to and detached from the end portion of the air cushion boat along the hull side end seal mounting portion. A plurality of rollers on the end seal side, a guide rail disposed on the hull side to guide the rollers, and the hull so that the rollers run while being guided by the guide rails. And a pulling means for pulling the end seal of the air cushion boat. 2. The end seal attaching / detaching mechanism for an air cushion boat according to claim 1, wherein each of the rollers is disposed along an upper end of the end seal, and an upper end of the end seal has: An end seal attaching / detaching mechanism for an air cushion boat, wherein a seal cap for covering an exposed portion on the hull side between the hull and the end seal is extended. 3. The end seal attaching / detaching mechanism for an air cushion boat according to claim 1, wherein the towing means for towing the end seal with respect to the hull is a winch mounted on the hull. An end seal attaching / detaching mechanism for an air cushion boat. 4. An end cushion attached to the end seal along an upper end of the end seal detachably attached to the end of the air cushion boat for detaching the end seal from the end of the air cushion boat. A roller guide rail having a detachable tool, and a roller that can be guided and moved by the roller guide guide are rotatably supported and move along the roller guide guide rail via the roller. Until the roller guide rail is attached to the end of the hull by the detachable tool, rigidity is added to the roller guide rail, and the roller guide rail is attached to the end of the hull of the hull. A support frame with rollers having sufficient rigidity itself, which is taken out from the guide rails for roller guide after being mounted on the detachable tool, An end seal for an air cushion boat, comprising: a winch disposed on the hull for operating a guide rail for roller guide mounted on the hull together with the end seal via a rope. Desorption mechanism. 5. The end sealing mechanism for an air cushion boat according to claim 4, wherein a rope draw-in hole is formed in an upper portion of the hull for guiding the rope when the winch draws the rope. An end seal attaching / detaching mechanism for an air cushion boat.